lsx.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <dirent.h>
   3 #include <errno.h>
   4 #include <limits.h>
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <sys/stat.h>
   9
  10 static void lsx(const char *dir);
  11
  12 static int status = EXIT_SUCCESS;
  13
  14 int
  15 main(int argc, char *argv[]) {
  16         int i;
  17
  18         if(argc < 2)
  19                 lsx(".");
  20         else for(i = 1; i < argc; i++)
  21                 lsx(argv[i]);
  22         return status;
  23 }
  24
  25 void
  26 lsx(const char *dir) {
  27         char buf[PATH_MAX];
  28         struct dirent *d;
  29         struct stat st;
  30         DIR *dp;
  31
  32         for(dp = opendir(dir); dp && (d = readdir(dp)); errno = 0)
  33                 if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf
  34                 && access(buf, X_OK) == 0 && stat(buf, &st) == 0 && S_ISREG(st.st_mode))
  35                         puts(d->d_name);
  36
  37         if(errno != 0) {
  38                 status = EXIT_FAILURE;
  39                 perror(dir);
  40         }
  41         if(dp)
  42                 closedir(dp);
  43 }